<template>
  <div class="recommend" ref="recommend">
    <scroll ref="scroll" class="recommend-content" :data="discList">
      <div>
        <div v-if="recommends.length" class="slider-wrapper" ref="sliderWrapper">
          <slider>
            <div v-for="item in recommends" :key="item.id">
              <a :href="item.linkUrl">
                <img @load="loadImage" :src="item.picUrl">
              </a>
            </div>
          </slider>
        </div>
        <div class="recommend-list">
          <h1 class="list-title">热门歌单推荐</h1>
          <ul>
            <li @click="selectItem(item)" v-for="item in discList" class="item" :key="item.dissid">
              <div class="icon">
                <img width="60" height="60" v-lazy="item.imgurl">
              </div>
              <div class="text">
                <h2 class="name" v-html="item.creator.name"></h2>
                <p class="desc" v-html="item.dissname"></p>
              </div>
            </li>
          </ul>
        </div>
      </div>
      <div class="loading-container" v-show="!discList.length">
        <loading></loading>
      </div>
    </scroll>
    <router-view></router-view>
  </div>
</template>

<script type="text/ecmascript-6">
import Slider from 'base/slider/slider'
import Loading from 'base/loading/loading'
import Scroll from 'base/scroll/scroll'
import {getRecommend, getDiscList} from 'api/recommend'
import {ERR_OK} from 'api/config'
import {playlistMixin} from 'common/js/mixin'
import {mapMutations} from 'vuex'

export default {
  mixins: [playlistMixin],
  data() {
    return {
      recommends: [],
      discList: []
    }
  },
  created() {
    this._getRecommend()
    this._getDiscList()
  },
  methods: {
    handlePlaylist(playlist) {
      const bottom = playlist.length > 0 ? '60px' : ''
      this.$refs.recommend.style.bottom = bottom
      this.$refs.scroll.refresh()
    },
    selectItem(item) {
      this.$router.push({
        path: `/recommend/${item.dissid}`
      })
      this.setDisc(item)
    },
    _getRecommend() {
      getRecommend().then((res) => {
        if (res.code === ERR_OK) {
          this.recommends = res.data.slider
        }
      })
    },
    _getDiscList() {
      getDiscList().then((res) => {
        if (res.code === ERR_OK) {
          this.discList = res.data.list
        }
      })
    },
    loadImage() {
      if (!this.checkLoaded) {
        this.$refs.scroll.refresh()
        this.checkLoaded = true
      }
    },
    ...mapMutations({
      setDisc: 'SET_DISC'
    })
  },
  components: {
    Slider,
    Scroll,
    Loading
  }
}
</script>

<style scoped lang="less">
  @import "~common/less/variable";

  .recommend{
    position: fixed;
    width: 100%;
    top: 88px;
    bottom: 0;
    .recommend-content{
      height: 100%;
      overflow: hidden;
      .slider-wrapper{
        position: relative;
        width: 100%;
        overflow: hidden;
      }
      .recommend-list{
        .list-title{
          height: 65px;
          line-height: 65px;
          text-align: center;
          font-size: @font-size-medium;
          color: @color-theme;
        }
        .item{
          display: flex;
          box-sizing: border-box;
          align-items: center;
          padding: 0 20px 20px 20px;
          .icon{
            flex: 0 0 60px;
            width: 60px;
            padding-right: 20px;
          }
          .text{
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
            line-height: 20px;
            overflow: hidden;
            font-size: @font-size-medium;
            .name{
              margin-bottom: 10px;
              color: @color-text;
            }
            .desc{
              color: @color-text-d;
            }
          }
        }
      }
      .loading-container{
        position: absolute;
        width: 100%;
        top: 50%;
        transform: translateY(-50%);
      }
    }
  }
</style>
